Publication

Decline of deep and bottom water ventilation and slowing down of anthropogenic carbon storage in the Weddell Sea, 1984-2011

Huhn, O., Rhein, M., Hoppema, M. & van Heuven, S., Jun-2013, In : Deep-Sea research part i-Oceanographic research papers. 76, p. 66-84 19 p.

Research output: Contribution to journalArticleAcademicpeer-review

APA

Huhn, O., Rhein, M., Hoppema, M., & van Heuven, S. (2013). Decline of deep and bottom water ventilation and slowing down of anthropogenic carbon storage in the Weddell Sea, 1984-2011. Deep-Sea research part i-Oceanographic research papers, 76, 66-84. https://doi.org/10.1016/j.dsr.2013.01.005

Author

Huhn, Oliver ; Rhein, Monika ; Hoppema, Mario ; van Heuven, Steven. / Decline of deep and bottom water ventilation and slowing down of anthropogenic carbon storage in the Weddell Sea, 1984-2011. In: Deep-Sea research part i-Oceanographic research papers. 2013 ; Vol. 76. pp. 66-84.

Harvard

Huhn, O, Rhein, M, Hoppema, M & van Heuven, S 2013, 'Decline of deep and bottom water ventilation and slowing down of anthropogenic carbon storage in the Weddell Sea, 1984-2011', Deep-Sea research part i-Oceanographic research papers, vol. 76, pp. 66-84. https://doi.org/10.1016/j.dsr.2013.01.005

Standard

Decline of deep and bottom water ventilation and slowing down of anthropogenic carbon storage in the Weddell Sea, 1984-2011. / Huhn, Oliver; Rhein, Monika; Hoppema, Mario; van Heuven, Steven.

In: Deep-Sea research part i-Oceanographic research papers, Vol. 76, 06.2013, p. 66-84.

Research output: Contribution to journalArticleAcademicpeer-review

Vancouver

Huhn O, Rhein M, Hoppema M, van Heuven S. Decline of deep and bottom water ventilation and slowing down of anthropogenic carbon storage in the Weddell Sea, 1984-2011. Deep-Sea research part i-Oceanographic research papers. 2013 Jun;76:66-84. https://doi.org/10.1016/j.dsr.2013.01.005


BibTeX

@article{63b27db62b154832a03601723be5f68d,
title = "Decline of deep and bottom water ventilation and slowing down of anthropogenic carbon storage in the Weddell Sea, 1984-2011",
abstract = "We use a 27 year long time series of repeated transient tracer observations to investigate the evolution of the ventilation time scales and the related content of anthropogenic carbon (C-ant) in deep and bottom water in the Weddell Sea. This time series consists of chlorofluorocarbon (CFC) observations from 1984 to 2008 together with first combined CFC and sulphur hexafluoride (SF6) measurements from 2010/2011 along the Prime Meridian in the Antarctic Ocean and across the Weddell Sea. Applying the Transit Time Distribution (TTD) method we find that all deep water masses in the Weddell Sea have been continually growing older and getting less ventilated during the last 27 years. The decline of the ventilation rate of Weddell Sea Bottom Water (WSBW) and Weddell Sea Deep Water (WSDW) along the Prime Meridian is in the order of 15-21{\%}; the Warm Deep Water (WDW) ventilation rate declined much faster by 33{\%}. About 88-94{\%} of the age increase in WSBW near its source regions (1.8-2.4 years per year) is explained by the age increase of WDW (4.5 years per year). As a consequence of the aging, the C-ant increase in the deep and bottom water formed in the Weddell Sea slowed down by 14-21{\%} over the period of observations. (C) 2013 Published by Elsevier Ltd.",
keywords = "Southern Ocean, Weddell Sea, Transient tracers, Chlorofluorocarbon (CFC), Transit time distribution (TTD), Ventilation, Antarctic Bottom Water (AABW), Weddell Sea Bottom Water (WSBW), Weddell Sea Deep Water (WSDW), Anthropogenic carbon (C-ant), SUBPOLAR NORTH-ATLANTIC, ICE STATION WEDDELL, SOUTHERN-OCEAN, TRACER OBSERVATIONS, SULFUR-HEXAFLUORIDE, SCOTIA CONFLUENCE, TRANSIT-TIME, SHELF WATER, CO2, DISTRIBUTIONS",
author = "Oliver Huhn and Monika Rhein and Mario Hoppema and {van Heuven}, Steven",
year = "2013",
month = "6",
doi = "10.1016/j.dsr.2013.01.005",
language = "English",
volume = "76",
pages = "66--84",
journal = "Deep-Sea Research I",
issn = "0967-0637",

}

RIS

TY - JOUR

T1 - Decline of deep and bottom water ventilation and slowing down of anthropogenic carbon storage in the Weddell Sea, 1984-2011

AU - Huhn, Oliver

AU - Rhein, Monika

AU - Hoppema, Mario

AU - van Heuven, Steven

PY - 2013/6

Y1 - 2013/6

N2 - We use a 27 year long time series of repeated transient tracer observations to investigate the evolution of the ventilation time scales and the related content of anthropogenic carbon (C-ant) in deep and bottom water in the Weddell Sea. This time series consists of chlorofluorocarbon (CFC) observations from 1984 to 2008 together with first combined CFC and sulphur hexafluoride (SF6) measurements from 2010/2011 along the Prime Meridian in the Antarctic Ocean and across the Weddell Sea. Applying the Transit Time Distribution (TTD) method we find that all deep water masses in the Weddell Sea have been continually growing older and getting less ventilated during the last 27 years. The decline of the ventilation rate of Weddell Sea Bottom Water (WSBW) and Weddell Sea Deep Water (WSDW) along the Prime Meridian is in the order of 15-21%; the Warm Deep Water (WDW) ventilation rate declined much faster by 33%. About 88-94% of the age increase in WSBW near its source regions (1.8-2.4 years per year) is explained by the age increase of WDW (4.5 years per year). As a consequence of the aging, the C-ant increase in the deep and bottom water formed in the Weddell Sea slowed down by 14-21% over the period of observations. (C) 2013 Published by Elsevier Ltd.

AB - We use a 27 year long time series of repeated transient tracer observations to investigate the evolution of the ventilation time scales and the related content of anthropogenic carbon (C-ant) in deep and bottom water in the Weddell Sea. This time series consists of chlorofluorocarbon (CFC) observations from 1984 to 2008 together with first combined CFC and sulphur hexafluoride (SF6) measurements from 2010/2011 along the Prime Meridian in the Antarctic Ocean and across the Weddell Sea. Applying the Transit Time Distribution (TTD) method we find that all deep water masses in the Weddell Sea have been continually growing older and getting less ventilated during the last 27 years. The decline of the ventilation rate of Weddell Sea Bottom Water (WSBW) and Weddell Sea Deep Water (WSDW) along the Prime Meridian is in the order of 15-21%; the Warm Deep Water (WDW) ventilation rate declined much faster by 33%. About 88-94% of the age increase in WSBW near its source regions (1.8-2.4 years per year) is explained by the age increase of WDW (4.5 years per year). As a consequence of the aging, the C-ant increase in the deep and bottom water formed in the Weddell Sea slowed down by 14-21% over the period of observations. (C) 2013 Published by Elsevier Ltd.

KW - Southern Ocean

KW - Weddell Sea

KW - Transient tracers

KW - Chlorofluorocarbon (CFC)

KW - Transit time distribution (TTD)

KW - Ventilation

KW - Antarctic Bottom Water (AABW)

KW - Weddell Sea Bottom Water (WSBW)

KW - Weddell Sea Deep Water (WSDW)

KW - Anthropogenic carbon (C-ant)

KW - SUBPOLAR NORTH-ATLANTIC

KW - ICE STATION WEDDELL

KW - SOUTHERN-OCEAN

KW - TRACER OBSERVATIONS

KW - SULFUR-HEXAFLUORIDE

KW - SCOTIA CONFLUENCE

KW - TRANSIT-TIME

KW - SHELF WATER

KW - CO2

KW - DISTRIBUTIONS

U2 - 10.1016/j.dsr.2013.01.005

DO - 10.1016/j.dsr.2013.01.005

M3 - Article

VL - 76

SP - 66

EP - 84

JO - Deep-Sea Research I

JF - Deep-Sea Research I

SN - 0967-0637

ER -

ID: 5865860